i2pu3mpkcorinasi
i2pu3mpkcorinasi i2pu3mpkcorinasi
  • 10-06-2016
  • Mathematics
contestada

Kevin is 3 times as old as Daniel. 4 years ago, Kevin was 5 times as old as Daniel. How old is Daniel now

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W0lf93
W0lf93 W0lf93
  • 23-08-2017
K = 3D. K - 4 = 5(D - 4). K - 4 = 5D - 20. K = 5D - 16. 3D = 5D - 16. 16 = 2D. D = 8. K = 3 x 8. K = 24.
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